// 18.5.12. Get typed relationships
func TestGetTypedRelationships(t *testing.T) {
db := connectTest(t)
defer cleanup(t, db)
// Create
relType0 := rndStr(t)
relType1 := rndStr(t)
n0, _ := db.CreateNode(Props{})
n1, _ := db.CreateNode(Props{})
r0, _ := n0.Relate(relType0, n1.Id(), Props{})
r1, _ := n0.Relate(relType1, n1.Id(), Props{})
// Check one type of relationship
rels, err := n0.Relationships(relType0)
if err != nil {
t.Error(err)
}
assert.Equalf(t, len(rels), 1, "Wrong number of relationships")
_, present := rels.Map()[r0.Id()]
assert.Tf(t, present, "Missing expected relationship")
// Check two types of relationship together
rels, err = n0.Relationships(relType0, relType1)
if err != nil {
t.Error(err)
}
assert.Equalf(t, len(rels), 2, "Wrong number of relationships")
for _, r := range []*Relationship{r0, r1} {
_, present := rels.Map()[r.Id()]
assert.Tf(t, present, "Missing expected relationship")
}
}
// 18.9.9. Find node by exact match
func TestFindNodeByExactMatch(t *testing.T) {
db := connectTest(t)
defer cleanup(t, db)
// Create
idxName := rndStr(t)
key0 := rndStr(t)
key1 := rndStr(t)
value0 := rndStr(t)
value1 := rndStr(t)
idx0, _ := db.CreateLegacyNodeIndex(idxName, "", "")
defer idx0.Delete()
n0, _ := db.CreateNode(Props{})
n1, _ := db.CreateNode(Props{})
n2, _ := db.CreateNode(Props{})
// These two will be located by Find() below
idx0.Add(n0, key0, value0)
idx0.Add(n1, key0, value0)
// These two will NOT be located by Find() below
idx0.Add(n2, key1, value0)
idx0.Add(n2, key0, value1)
//
nodes, err := idx0.Find(key0, value0)
if err != nil {
t.Error(err)
}
// This query should have returned a map containing just two nodes, n1 and n0.
assert.Equal(t, len(nodes), 2)
_, present := nodes[n0.Id()]
assert.Tf(t, present, "Find() failed to return node with id "+strconv.Itoa(n0.Id()))
_, present = nodes[n1.Id()]
assert.Tf(t, present, "Find() failed to return node with id "+strconv.Itoa(n1.Id()))
}
// 18.6.1. Get relationship types
func TestGetRelationshipTypes(t *testing.T) {
db := connectTest(t)
defer cleanup(t, db)
relTypes := []string{}
for i := 0; i < 10; i++ {
relTypes = append(relTypes, rndStr(t))
}
// Create relationships
n0, _ := db.CreateNode(Props{})
n1, _ := db.CreateNode(Props{})
rels := []*Relationship{}
for _, rt := range relTypes {
aRel, _ := n0.Relate(rt, n1.Id(), Props{})
rels = append(rels, aRel)
}
// Get all relationship types, and confirm the list of types contains at least
// all those randomly-generated values in relTypes. It cannot be guaranteed
// that the database will not contain other relationship types beyond these.
foundRelTypes, err := db.RelTypes()
if err != nil {
t.Error(err)
}
for _, rt := range relTypes {
assert.Tf(t, sort.SearchStrings(foundRelTypes, rt) < len(foundRelTypes),
"Could not find expected relationship type: "+rt)
}
}
// 18.7.1. Set property on node
func TestSetPropertyOnNode(t *testing.T) {
db := connectTest(t)
defer cleanup(t, db)
// Create
n0, _ := db.CreateNode(Props{})
key := rndStr(t)
value := rndStr(t)
err := n0.SetProperty(key, value)
if err != nil {
t.Error(err)
}
// Confirm
props, _ := n0.Properties()
checkVal, present := props[key]
assert.Tf(t, present, "Expected property key not found")
assert.Tf(t, checkVal == value, "Expected property value not found")
}
// 18.5.2. Create relationship
func TestCreateRelationship(t *testing.T) {
db := connectTest(t)
defer cleanup(t, db)
// Create
n0, _ := db.CreateNode(Props{})
n1, _ := db.CreateNode(Props{})
r0, err := n0.Relate("knows", n1.Id(), Props{})
if err != nil {
t.Error(err)
}
// Confirm relationship exists on both nodes
rels, _ := n0.Outgoing("knows")
_, present := rels.Map()[r0.Id()]
assert.Tf(t, present, "Outgoing relationship not present on origin node.")
rels, _ = n1.Incoming("knows")
_, present = rels.Map()[r0.Id()]
assert.Tf(t, present, "Incoming relationship not present on destination node.")
}
// 18.9.10. Find node by query
func TestFindNodeByQuery(t *testing.T) {
db := connectTest(t)
defer cleanup(t, db)
// Create
idx0, _ := db.CreateLegacyNodeIndex("test index", "", "")
defer idx0.Delete()
key0 := rndStr(t)
key1 := rndStr(t)
value0 := rndStr(t)
value1 := rndStr(t)
n0, _ := db.CreateNode(Props{})
idx0.Add(n0, key0, value0)
idx0.Add(n0, key1, value1)
n1, _ := db.CreateNode(Props{})
idx0.Add(n1, key0, value0)
n2, _ := db.CreateNode(Props{})
idx0.Add(n2, rndStr(t), rndStr(t))
// Retrieve
luceneQuery0 := fmt.Sprintf("%v:%v AND %v:%v", key0, value0, key1, value1) // Retrieve n0 only
luceneQuery1 := fmt.Sprintf("%v:%v", key0, value0) // Retrieve n0 and n1
nodes0, err := idx0.Query(luceneQuery0)
if err != nil {
t.Error(err)
}
nodes1, err := idx0.Query(luceneQuery1)
if err != nil {
t.Error(err)
}
// Confirm
assert.Equalf(t, len(nodes0), 1, "Query should have returned only one Node.")
_, present := nodes0[n0.Id()]
assert.Tf(t, present, "Query() failed to return node with id "+strconv.Itoa(n0.Id()))
assert.Equalf(t, len(nodes1), 2, "Query should have returned exactly 2 Nodes.")
_, present = nodes1[n0.Id()]
assert.Tf(t, present, "Query() failed to return node with id "+strconv.Itoa(n0.Id()))
_, present = nodes1[n1.Id()]
assert.Tf(t, present, "Query() failed to return node with id "+strconv.Itoa(n1.Id()))
}
// 18.5.10. Get incoming relationships
func TestGetIncomingRelationships(t *testing.T) {
db := connectTest(t)
defer cleanup(t, db)
// Create
n0, _ := db.CreateNode(Props{})
n1, _ := db.CreateNode(Props{})
n0.Relate("knows", n1.Id(), Props{})
r1, _ := n1.Relate("knows", n0.Id(), Props{})
n0.Relate("knows", n1.Id(), Props{})
// Check relationships
rels, err := n0.Incoming()
if err != nil {
t.Error(err)
}
assert.Equalf(t, len(rels), 1, "Wrong number of relationships")
_, present := rels.Map()[r1.Id()]
assert.Tf(t, present, "Missing expected relationship")
}